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Condensate drain (s)

My main condensate drain is working correctly (just got new system) but I still have +- an inch of water in the emergency drain pan and it is flowing out. I didn't think the pan would be draining water except if the main drain failed. Can you set me straight? Live in hot humid Dallas TX.
Thanks,

Is the end of your condensate drain line flowing freely or in the dirt? The clog may not always be in the drain line itself but at the end of the line. Best thing to do is look to see if if your line is dripping from outside. If it is in fact dripping in ac mode then the challenge is not your line.. If it was me I would install a pvc union, blow out the line with nitrogen, install an easy trap and float switch.. Hope it works out for you!

It sounds like the condensate isn't all going out your primary drain, and is dripping into the emergency drain. What did your installing contractor say when he came out to look at it?

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"Press on. Nothing in the world can take the place of persistence. Talent will not; nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education alone will not; the world is full of educated derelicts. Persistence and determination alone are omnipotent.".

After your installing contractor fixes your drain problem. (Sounds like your Coil is not "level" in the air-handler. Or the primary pan is cracked. Or connections in your pvc is not tight.) Have them intall a float switch in your emergency pan and a "SS1" or any style of "in-line" float switch in your drain line. These two items will shut down your system if you have drain problems in the future. Which will prevent any further damage.

I should have said the main drain is flowing, correctly was an assumption on my part, point well taken.
Company is licensed, bonded and insured, one of the best in Dallas, employee owned.
I believe I do have a float switch, see pic.
The main drain goes to indoor plumbing and out to septic.
Thanks for the comments.